Redis Persistence, Replication, and Cluster Cheat Sheet

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RDB, AOF, replication, failover, Lua scripts, functions, and cluster command references for operational Redis use.

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Persistence

RDB, AOF, rewrite, and durability-related commands.

Read time of last successful save

Return the Unix timestamp of last successful save.

↗#

bashANYredispersistencelastsave

bash

LASTSAVE

Rewrite AOF in background

Compact the append-only file in the background.

↗#

bashANYredisaofrewrite

bash

BGREWRITEAOF

Wait for replicas to acknowledge writes

Block until writes reach a minimum number of replicas or timeout.

↗#

bashANYredisreplicationdurability

bash

WAIT 1 5000

Wait for local AOF fsync

Wait for AOF persistence conditions when supported.

↗#

bashANYredisaofdurability

bash

WAITAOF 1 1000 5000

Replication and failover

Replica setup, role inspection, and controlled failover.

Make server replicate from a primary

Turn the current node into a replica of a primary.

↗#

bashANYredisreplicationreplicaof

bash

REPLICAOF 10.0.0.10 6379

Promote a replica

Stop replicating and promote current node to primary.

↗#

bashANYredisreplicationpromote

bash

REPLICAOF NO ONE

Inspect node role

Return whether this node is primary, replica, or sentinel and related metadata.

↗#

bashANYredisreplicationrole

bash

ROLE

Trigger coordinated failover

Ask a primary to hand off leadership to a replica.

↗#

bashANYredisreplicationfailover

bash

FAILOVER

Partial resynchronization handshake

Replication handshake command used internally by replicas.

↗#

bashANYredisreplicationinternal

bash

PSYNC ? -1

Lua scripts and functions

Server-side execution for atomic workflows and reusable logic.

Run a Lua script

Execute Lua server-side atomically.

↗#

bashANYredisluaeval

bash

EVAL "return redis.call('GET', KEYS[1])" 1 user:1:name

Run a cached Lua script by SHA

Execute a previously loaded Lua script.

↗#

bashANYredisluaevalsha

bash

EVALSHA <sha1> 1 user:1:name

Load a Lua script

Cache a Lua script and return its SHA1.

↗#

bashANYredisluascript

bash

SCRIPT LOAD "return 1"

Check cached scripts

Check whether one or more scripts are cached.

↗#

bashANYredisluascript

bash

SCRIPT EXISTS <sha1>

Clear cached scripts

Remove all cached Lua scripts.

↗#

bashANYredisluascript

bash

SCRIPT FLUSH

Load a Redis function library

Load a function library into the server.

↗#

bashANYredisfunctionlua

bash

FUNCTION LOAD "#!lua name=mylib
redis.register_function('ping', function() return 'pong' end)"

List loaded function libraries

Inspect currently loaded libraries and functions.

↗#

bashANYredisfunctioninspect

bash

FUNCTION LIST

Call a registered function

Execute a loaded Redis function.

↗#

bashANYredisfunctionexecute

bash

FCALL ping 0

Delete a function library

Remove a loaded function library.

↗#

bashANYredisfunctionadmin

bash

FUNCTION DELETE mylib

Cluster basics

Redis Cluster slot inspection and cluster-aware operations.

Inspect cluster state

Read cluster state, slot coverage, and message counters.

↗#

bashANYredisclusterinspect

bash

CLUSTER INFO

List cluster nodes

Show known cluster nodes and flags.

↗#

bashANYredisclusterinspect

bash

CLUSTER NODES

Inspect slot mapping

Return slot-to-node ownership information.

↗#

bashANYredisclusterinspect

bash

CLUSTER SLOTS

Compute key hash slot

Compute the cluster slot for a key.

↗#

bashANYredisclusterslot

bash

CLUSTER KEYSLOT user:{42}:profile

Count keys in a slot

Count how many keys exist in one slot.

↗#

bashANYredisclusterslot

bash

CLUSTER COUNTKEYSINSLOT 1234

Allow replica reads in cluster mode

Tell a cluster replica connection to serve reads.

↗#

bashANYredisclusterreplica

bash

READONLY

Return to normal read/write routing

Disable READONLY mode on a cluster connection.

↗#

bashANYredisclusterreplica

bash

READWRITE

Accept an ASK redirection

Send ASKING before a redirected command during slot migration.

↗#

bashANYredisclustermigration

bash

ASKING

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